Steam generator



Aug. 7, 192s.

, 1,680,166 L. N. Moss E1' AL STEAM GENERATOR Filed Aug. 26, 1926 ,2 Sheets-Sheet 2 ATTORNEYS.

Patented Aug. 7, 1228..

i narrata 'esta `LfDlUS N. MOSS AND JULI'US S. WESTON, `OYF CEDARHURST, NEW YORK.

STEAM GENERATOR.

Application -led August 26, A1926. Serial No. 131,724.

This invention relates to the class of steam generators and water heaters.

, The principal object ofthe Ipresent in vention is the production of a steam generator or water heaterembodying novel, features Iof construction by virtue, of which a comparatively lincreased thermal :efficiency is obtained with a given amount of fuel.

Another object of the Vinvention resides inthe provision of a steam generator or water heater especially adapted for burning oil or gas andwhich embodies structural features permitting cleaning operations lto be readily carried out, especially to permit the removal oi' soot from the walls of the heat passages.

The nature of `the invention vand its dis tinguishing ,features and :advantages `will appear when the following specification is read in connectionwvith the accompanying drawing, in which- Y I Figure 1 isa sectional elevation roi va steam generator embodying the features of the present invention, portions being .broken away. 1

Fig. 2 is a Yhorizontal sectional view taken on the line 2--2 of Fig. 1, and the sections of the inner shell being shown in an opened positionvin dotted lines.

Fig. 3 is a perspective view of one section of theouter shell.

The steam generator or water heater of the present invention will include three main sections, a base section 10,- an interior section 11, and top or domesection12. The said sections are arranged insuperposed relationship and are held together in any preferred manner. ln the present instance the interior section 11 is supported .above the base section 1() `by suitable postsV or supports 13 which extend vertically from suitable lugs 14 inside o the base section Y10. Nuts 15 maintain the association of the sections 10 yand 11 andv also permit the separation of the sections when `the lnuts 15 are removed. The top section 12 is held in Aplace on the interior section V11 `by suitable fastening Velements such as the studs r16. The top section12 may be removed `by removing the studs 16. 1

The 'base section 1() consists Otan inte gral casting of `hollow construction having an opening 17, a wall 18, and a flange`19.

rlfhe interior section 11 consists of a casting formed Vto provide intercominunicating waterispaces 20, 21 and 22. The water space 20 is formed by the inner and outer cylindrical Walls 23 and 24 respectively, lower Wall 25,V and upper wall 26 having openings 27 therein. The water space 21 is formed by the section 28 of the outer wall 24 which extends above the upper Wall 26. T he water spaceu22 is formed by a wall structure 28a in the nature of a well which extends down into a cylindrical heat chamber 29 formed bythe inner wall 24. A fusible plug 3() i is arranged in the bottomsot' the wall struc.- ture 2S. The fusible plug 30 constitutes a means to prevent the .section 11 rom'burning out when the water in the wall Vspace 22 diminishes to a certain low level. The interior section 11 is also provided with a group of heat `passages or lues 81 which extend throughthe water space 20 and are arranged radially. The lues 31 serve'for conducting heat radially outward from the chamber 29. A second group of heat passages or lues 32 is also provided above `the group of flues 31 and said flues 32 extend radiallyA `in 4the water space 21. Each Aof the fines 32 -opens through the wall section V28 and communicates'atla central point with each other. The top 33 of the section 11 has openings 34 therein which communicate withthe water space 21 `between the iiues 32. The section 11 has van annular web 35 at the bottom thereof, and ythe said web 85 has -a lia-nge 36; rihe wall 26 is extended beyond the outer wall 24 and is provided with a kdepending iiange 37.

Thegtop or dome section 12 consists of an integral casting of hollow construction to Aprovide a steam chamber 38 which communi- ,cates with the water space 21 by virtue of the openings 34 and openings 39 which register with the openings The openings 39 are -in the bottoni wall 40 of the section 12 which is also provided vwith a depending flange 41 and a Acentral recess 42. Arranged centrally oi? the section 12 is an up-take iiue 43 which extends through thesteam chamber 38 andfhas connected to the'upper end there of a chimney or pipe 44 which conducts off the gases, and gives the necessary draft. yThe upper wall oi the section 12 is provided with steam outlets 45 which have pipe con nections to any suitable appurtenances of the heating system. The section 12 is. provided with a gage glass 46 which indicates the level of the water in the steam chamy ber 38. The recess 42 accomodatesn a neck 47 on the top 33 of the section 11, and thus communication is established between the Ytlues 32 and the up-take flue 43.

In order to provide passageways for theA heat issuing through the tlues 31 from the chamber 29 and to conduct the same first downwardly and then upwardly to the lues and are held in place by a band 54 which is divided and held in clamping engagement by virtue of lugs 55 and a suitable clamping bolt 56. The liange 36'prevcnts the sections 49 and 50': from collapsing inwardly at an intermediate point. v An interior or inner shell 57 is provided and is arranged between the shell 48 and the outer wall 24 of the section 11. The shell 57 comprises sections 58 and 59 which are identical in construction and which are hingedly connected together as at (30hy virtue of a bolt 61. The upper edge of" each section 58 and 59 has a iange'62 Vwhich rests on the flange 37. Each of the Vie sections 58 and 59 has an apertured lug 63, and the apertures insaid lugs v63 accommodate a suitable clamping device 64which releasably maintains the sections 58 and 59 in shell forming relationship. v

Water fis admitted to the water space 2O by an inlet pipe 65, and water ofcondensation is returned from the system to the water space 2O by a return pipe 66, Y-

It rwill be apparent that portions of the section 11, the "lower portion of the shell 48, and the wall 18 of the section 10 form a combustion chamber 67. In the present instance there is employeda burner 68 of any preferred type for burning gas, and the said burner "is arranged within the combustion chamber G7. A suitable slide or regulator 69 is provided which serves for regu- -lating the amount of air entering the combustion chamber 67. It will also be apparent that the combustion chamber 67 is in communication with the heat chamber 29.

Y From the foregoing description taken in conjunction with'the accompanying drawings,

Y it will be apparentthat there has been-described, a steam generator or water heater having a novel arrangement of heating surfaces, that the heat is compelled to pass along a tortous course obviating the loss of heat unnecessarily by radiation; and .that Y parts may be removed Vfor readily removing products ofA combustion, such as soot.

l/Ve claim: n

\ 1. In a steam generator, a combustion chamber, an interior section arranged above the combustion chamber, saidA interior section including heating walls forming intercommunicating water spaces and a heatv chamber; said waterspaces consisting of a. water space surrounding said heat chamber,

awwater space above said heat chamber, andV a water space extending into said heat chainber; relatively spaced inner and-outer shells surrounding said linterior section Vproviding a tortuous passageway for the heat; a

top section directly above-'said interior section, said top section-having a steam' chamber and steam outlets, and water inlets establishing communication between fthe 4 steam chamber and one of said waterspaces, 'Y

an uptake fine` extendingfthrough' said top section, radial flues' establishing communication between saidheatcham'ber and said passageway,- and radial iiues establishing communication between said 'passageway i and said uptake flue'. Y A

2. In a heater of the class described, a water chamber, an outer removable-shell of separable parts, and ari-inner dividing shell comprising -liingedly'- 'connected sections, said shells coacting with saidfwater chamberto provide a heat passageway leading ownwardlyand then vupwardly'. of the eater..i`

3. In a heater ofthe class described,'an

interior section Y constructedY to provide a.

water space'7 radial heat passageways arranged in groups, one group of passageways arrangedabove the other, the upper group of passageways leading to a central uptake passage, and a removable shell surrounding said interior section tourform a heatV passage in conjunction with said passageways.

4. In "a steam generator, an upper Asection constructed to provide a steam chamber; andan interior section below the upper section, said interior section constructed `.to provide a water space, radial lues arranged in groups, one group of lues arranged above the other, said water* space being in V'coininunication with said steam chamber, an uptake flue extending lthrough said steam chamber in communication with the upper group of heat iiues, and a removable shell surrounding said interior section to `forni a heat passage in conjunctionwith'said lues.

5. In a water heater or steamV generator, an interior section constructed to provide intercommunic'ating`.water spaces, 'a' heat chamber and radialgroupsV of `ilues, the

flues of one group communicating with each other at a eentralpointfsaid' water spaces consisting of a .waterv space surrounding said heat chamber, a Water space above said heat chamber, and a Watel1 space extending into saidV heat chamber, one group of ues extending through the Water space surrounding the heat Chamber and being in communication with the heat chamber, and the othel group of ues extending through LOUIS N. MOSS. JULIUS S. WESTON. 

